/****
 *
 * frameReady: Remote function calling for jQuery
 *
 * Version 1.2.0
 *
 * Copyright (c) 2007 Daemach (John Wilson) <daemach@gmail.com>, http://ideamill.synaptrixgroup.com
 * Licensed under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 * 
 *      Credit John Resig and his excellent book for the ready function concepts.
 *
 * ============================================================================================
 * Usage:       $.frameReady(function (function),target (string)[,options (map/object)]);
 * 
 * Function: (function/required) An anonymous function to be run within the target frame.
 *
 * Target: (string/required) The target frame.  This must be a window object name (in quotes), 
 *              so work from the top down.  If you have 3 frames named topFrame, navFrame, mainFrame, and 
 *              an iframe inside of mainframe named iFrame, use "top.topFrame", "top.navFrame", 
 *              "top.mainFrame", "top.mainFrame.iFrame" respectively.
 *
 *      Options: (object/optional) Map of options in object literal form.  Options include:
 *
 *              remote: (boolean/ default true)  Run the function in the context of the target frame. 
 *                              If true, jQuery will be loaded in the target frame automatically and you can run 
 *                              jQuery selectors in the target frame as if they were local. ie: $("p") instead of 
 *                              $("p",top.mainFrame.document).  If false, jQuery will not be loaded automatically 
 *                              and you must use a context in jquery selectors.
 *                              
 *                      load: (array or object)  jquery is loaded by default. You can pass a single object to 
 *                              frameReady, or an array of objects that will be loaded and tested in order.  2 types 
 *                              of files can be loaded.  Scripts        and stylesheets:
 *                              
 *                              scripts: {type:"script", src:"/js/myscript.js", id:"_ms", test:"afunction"}
 *                              stylesheets: {type:"stylesheet", src:"/css/mycss.css", id:"_ss"}
 *                              
 *                                      type: (string/required) "script" for script files, "stylesheet" for stylesheets.
 *                                      src: (string/required)  The source of the file, ie: /js/myscript.js.
 *                                      id: (string/optional)  An id for the id attribute.  If one isn't provided it 
 *                                              will be generated.
 *                                      test: (sting/optional) The name of a function that should exist once the script 
 *                                              is loaded properly.  Until this function becomes available, the script will 
 *                                              be considered not ready and no other files will be loaded.  If a test is not 
 *                                              provided, the next file will be loaded immediately.  Tests are not useful 
 *                                              with stylesheets.
 *
 *      One gotcha: You must have something other than space characters within the body tags of 
 *      target frame documents for frameReady to work properly.  A single character is enough.  
 *              The reason for this is a workaround for an iFrame bug in Firefox, of all things.
 * ==============================================================================================
 *
 * Example: 
 *
 *              $.frameReady(function(){
 *                $("<div>I am a div element</div>").prependTo("body");
 *              }, "top.mainFrame", 
 *              { load: [ 
 *                      {type:"script",id:"_fr",src:"/js/jquery.frameReady.js",test: "$.frameReady"},
 *                      {type:"stylesheet",id:"_ss",src:"frameReady.css"} 
 *                      ] } 
 *              ); 
 *
 *
 * Release Notes:
 *      
 *      1.2.0 - Added provision for a local callback function;
 *              Added functionality to reset frame information if frame unloads for any reason;
 *                        
 *      1.1.0 - Added the ability to load scripts and stylesheets inside the target frame before
 *                                      processing function stack;
 *      
 ****/
 
if (typeof $daemach == "undefined") { 
        $daemach = {}; 
        $daemach.debug = false;  // set this to true to enable logging
        $daemach.log = function() {
                if (!top.window.console || !top.window.console.log || !$daemach.debug) { 
                        return;
                } else { 
                        top.window.console.log([].join.call(arguments,'')); 
                }
        }
}

if (typeof $daemach["frameReady"] == "undefined") { 
        $daemach["frameReady"] = {}; 
}
 
jQuery.frameReady = function(f,t,r,j) {
        
        /************************************************************
                You must specify the path to your jquery.js file below! 
        *************************************************************/
        
        var jQueryPath = "https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js";
        
        var u = "undefined";    
        var $fr = $daemach["frameReady"];
        var fn = t.split(".").join("_");        
        // create a branch
        if (typeof $fr[fn] == u) { 
                $fr[fn] = {}; 
                $fr[fn]["settings"] = { 
                        remote: true,
                        jquery: true,
                        load: [ {type:"script",id:"_jq", src:jQueryPath, test:"jQuery"} ],
                        bLoaded: false,
                        loadInit: [],
                        callback: false
                };
                $fr[fn]["target"] = t;
        }
        var fr = $fr[fn];       
        var frs = fr["settings"];
        
        if (fr.done) { 
                $daemach.log(fr.target + " is ready.  Running functions now.");
                return (frs.remote) ? eval(fr.target).eval("(" + f.toString() + ")()") : f(); 
        };
        
        // process arguments

        for (var a=2;a<arguments.length;a++){
                var arg = arguments[a];
                
                if ($.isFunction(arg)){
                        frs.callback = arg;
                } else if (typeof arg == "object") {
                        if (typeof arg.remote !== u) { 
                                frs.remote = arg.remote;
                        };
                        if (typeof arg.jquery !== u) { 
                                frs.jquery = arg.jquery;
                        };
                        
                        // if we're not running functions in the remote frame itself, no need for jQuery
                        if (!frs.remote || !frs.jquery) { 
                                frs.load.pop(); 
                        }
                        
                        if (typeof arg.load !== u) {
                                var bl = true;
                                if (arg.load.constructor == Array && arg.load.length){
                                        for (var i=0;i<arg.load.length;i++){
                                                bl = true;
                                                for (var h=0;h<frs.load.length;h++){
                                                        if (frs.load[h].src == arg.load[i].src) { bl=false; };
                                                }
                                                if (bl) { frs.load.push(arg.load[i]); }
                                        }
                                } else if (typeof arg.load == "object") {
                                        for (var h=0;h<frs.load.length;h++){
                                                if (frs.load[h].src == arg.load.src) { bl=false; };
                                        }
                                        if (bl) { frs.load.push(arg.load); }
                                }
                        }
                }
        }

        if (fr.timer) {
                fr.ready.push(f);
        } else {
                fr.ready=[f];
                if (typeof addEvent !== "undefined"){ addEvent(window,"load",function(){ jQuery.isFrameReady(fn); }); };
                fr.timer = setInterval(function(){ jQuery.isFrameReady(fn); },13);
        }
}

jQuery.isFrameReady = function(fn){
        var u = "undefined";    
        var $d = $daemach;
        var fr = $d["frameReady"][fn];
        var frs = fr["settings"];
        
        if (fr.done) { return false; };

        var fx = eval(fr.target);
        $d.log(fn, ": New Pass. Checking target");
        // make sure we have a target
        if (typeof fx !== "undefined") {
                $d.log(fn, ": Found target.  Checking DOM");
                var fd = fx.document;
                
                // make sure we have a DOM
                if (fd && fd.getElementsByTagName && fd.getElementById && fd.body && fd.body.innerHTML.length) {
                        
                        $d.log(fn, ": Found DOM");
                        
                        if (frs.load.length && !frs.bLoaded){
                                for (var i=0;i<frs.load.length;i++){
                                        var s = frs.load[i];
                                        var _test;
                                        try { _test = eval('typeof fx.'+s.test+ ' !== "undefined"'); } 
                                        catch(ex){ _test = false;}
                                        finally { $d.log(fn, ": Running test for script ",i,". ", (_test || !s.test) ? "Passed.":"Failed."); }

                                        if ((_test || !s.test) && frs.loadInit[i]) {
                                                frs.bLoaded = (typeof s.test == u) ? true : _test; 
                                                continue; 
                                        } else {
                                                frs.bLoaded = false;
                                                if (typeof frs.loadInit[i] == u){
                                                        var id = s.id || "frs_"+i;
                                                        switch (s.type) {
                                                                case "script" :
                                                                        $d.log(fn, ": Loading script "+ i + " (" + s.src + ")");
                                                                        var ele=fd.createElement('script');
                                                                        ele.setAttribute('id', id);
                                                                        ele.setAttribute('src', s.src);
                                                                        fd.getElementsByTagName("body")[0].appendChild(ele);
                                                                        void(ele);
                                                                        frs.loadInit[i] = true;
                                                                        break
                                                                case "stylesheet" :
                                                                        $d.log(fn, ": Loading stylesheet "+ i + " (" + s.src + ")");
                                                                        var ele=fd.createElement('link');
                                                                        ele.setAttribute('id', id);
                                                                        ele.setAttribute('href', s.src);
                                                                        ele.setAttribute('rel', "stylesheet");
                                                                        ele.setAttribute('type', "text/css");
                                                                        fd.getElementsByTagName("body")[0].appendChild(ele);
                                                                        void(ele);
                                                                        frs.loadInit[i] = true;
                                                                break
                                                                default :
                                                                        $d.log(fn, ": Script "+i+" has a bad or missing type attribute..." );
                                                        }
                                                }
                                                break;
                                        }
                                }
                        } else {
                                clearInterval(fr.timer);        
                                fr.timer = null;

                                fr.ready.push(function(){ window.frameReadyUnload = function(root, fn){ $(window).bind("unload",function(){ root.jQuery.frameReady.unload(fn); }); } });
                                
                                $d.log(fn, ": Processing function stack:");
                                for (var i=0; i<fr.ready.length;i++){
                                        (frs.remote) ? fx.eval("(" + fr.ready[i].toString() + ")()") : fr.ready[i]();
                                }
                                
                                fx.frameReadyUnload(window,fn);
                                
                                $d.log(fn, ": Function stack processing complete.");
                                
                                // we're done here.  let's have a beer.
                                fr.ready = null;
                                fr.done=true;
                                
                                if (frs.callback){ 
                                        $d.log(fn, ": Found a callback.  Executing...");
                                        frs.callback(); 
                                }
                        }
                }
        } 

        $d.log(fn, ":");
}

jQuery.frameReady.unload = function(fn){
        $daemach.log("Frame " + fn + " is unloading.  Resetting state.")
        $daemach["frameReady"][fn].done = false;
        $daemach["frameReady"][fn]["settings"].bLoaded = false;
        $daemach["frameReady"][fn]["settings"].loadInit = [];
}